/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package at.gp.web.jsf.extval.beanval.tag.startup;

import org.apache.myfaces.extensions.validator.core.startup.AbstractStartupListener;
import org.apache.myfaces.extensions.validator.core.ExtValContext;
import org.apache.myfaces.extensions.validator.core.interceptor.RendererInterceptor;
import org.apache.myfaces.extensions.validator.beanval.BeanValidationInterceptor;
import at.gp.web.jsf.extval.beanval.tag.ExtValBeanValidatorTagRendererInterceptor;

public class ExtValBeanValidatorTagStartupListener extends AbstractStartupListener
{
    private static final long serialVersionUID = -1493475676079918109L;

    protected void init()
    {
        boolean deregistered = false;

        //if it was registered before
        for(RendererInterceptor rendererInterceptor : ExtValContext.getContext().getRendererInterceptors())
        {
            if(rendererInterceptor instanceof BeanValidationInterceptor)
            {
                ExtValContext.getContext().deregisterRendererInterceptor(BeanValidationInterceptor.class);
                deregistered = true;
                break;
            }
        }

        ExtValContext.getContext().registerRendererInterceptor(new ExtValBeanValidatorTagRendererInterceptor());

        //register it again afterwards
        if(deregistered)
        {
            ExtValContext.getContext().registerRendererInterceptor(new BeanValidationInterceptor());
        }
    }
}
